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GOODWILL AND INTANGIBLE ASSETS - Narrative (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Jun. 30, 2025
Sep. 30, 2025
Dec. 31, 2024
Goodwill [Line Items]      
Goodwill impairment loss   $ 234.7  
Goodwill   $ 51.6 $ 286.3
Pharmacogenomics and Gateway Intangible Asset Groups      
Goodwill [Line Items]      
Impairment expense $ 82.0    
Pharmacogenomics      
Goodwill [Line Items]      
Percentage of discount rate, on risk adjusted cost of capital 17.00% 17.00%  
Goodwill impairment loss   $ 91.2  
Goodwill   29.8  
Impairment expense   71.8  
Gateway Intangible Asset Groups      
Goodwill [Line Items]      
Percentage of discount rate, on risk adjusted cost of capital 16.00%    
Impairment expense   10.2  
International Reporting Unit      
Goodwill [Line Items]      
Goodwill   $ 17.3  
Women’s Health      
Goodwill [Line Items]      
Percentage of discount rate, on risk adjusted cost of capital   16.00%  
Goodwill impairment loss   $ 143.5  
Goodwill   $ 4.5